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USGS Daily Statistics for Pennsylvania

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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.


The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01536000 Lackawanna River at Old Forge, PA


Lackawanna County, Pennsylvania
Hydrologic Unit Code 02050107
Latitude  41°21'33", Longitude  75°44'41" NAD27
Drainage area 332  square miles
Gage datum 594.61 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1959-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 508 429 575 1,150 733 576 394 193 244 376 352 575
2 513 481 580 1,160 676 499 346 214 291 302 332 580
3 500 527 569 1,260 652 425 299 211 202 279 345 529
4 488 507 573 1,290 655 376 279 232 214 274 307 506
5 499 453 726 1,230 651 348 244 208 175 278 291 482
6 473 420 742 1,120 676 431 213 200 189 254 296 475
7 471 438 694 1,070 655 432 193 187 281 230 290 513
8 472 408 676 1,050 604 367 210 188 231 217 341 524
9 466 373 687 942 603 343 204 207 256 261 447 501
10 484 367 790 958 623 321 179 222 223 247 415 495
11 443 442 817 912 650 304 180 238 204 274 423 593
12 443 445 783 837 654 327 192 230 213 292 425 624
13 465 436 786 837 690 361 216 291 240 239 443 634
14 531 429 830 800 713 363 245 307 211 236 419 612
15 444 437 917 850 673 362 222 247 196 257 430 537
16 418 462 787 958 677 341 211 198 237 271 467 515
17 384 466 796 944 688 352 182 180 214 271 505 513
18 395 493 803 840 638 344 186 221 451 254 425 602
19 529 481 775 788 610 310 177 201 274 363 411 519
20 484 493 806 772 638 276 167 162 225 396 434 465
21 406 501 812 743 561 344 170 161 200 446 434 553
22 381 520 882 739 543 404 178 174 201 351 424 508
23 404 549 884 724 519 433 181 274 249 323 438 501
24 497 652 830 725 517 355 200 178 263 328 404 541
25 586 745 864 765 476 306 202 173 336 306 407 609
26 594 698 870 731 423 325 192 143 289 342 419 536
27 641 582 974 761 401 426 190 145 426 382 505 509
28 585 625 984 732 391 543 178 207 437 417 644 480
29 525 608 1,090 666 513 395 166 187 368 408 595 478
30 509   1,080 659 479 361 203 191 334 389 579 470
31 469   1,080   457   225 165   358   504